Grain sorter



FIG. 1 is a top, front and right side perspective view of a grain sorter showing my new design,

FIG. 2 is a left side elevational view thereof,

FIG. 3 is a front elevational view thereof,

FIG. 4 is a rear elevational view thereof,

FIG. 5 is a top plan view thereof, and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a grain sorter, as shown. 